Ender is DH's #1 choice. I actually like it but we told a few people we were thinking about using Ender with our last pregnancy and everyone reacted very negatively toward it - saying it sounded incomplete, or weak, or he'd be too likely to get teased about it. We may still use it but after gettin such a big NO from so many people I'm not so sure about it. What do you all think of Ender? If I had to go with one of his choices though I'd go with that over Odin or Bane or Thor.

I love Ender's Game, so I do really like Ender. It was a nickname in the book though, which is why it feels incomplete.
There's also Anders, a variation--which you could probably use Ender as a nn for.
Or the more wild Endymion from mythology.

edit: also, I should add that the movie version of Ender's Game is coming out this fall, so I imagine (depending on it's success) the name will at least become more familiar to people. I'm expecting a burst of popularity for Petra as well.

Trying to generally stay away from names that end in N so they don't run on with our last name. So maybe not Gryffin/Larkin etc.

I love Archer though, and might warm up to Ulysses nn Uli (Ooli) if I think about it for a bit. I could get on board with Cedar too maybe if I could think of some good nicknames. Flint to me is too curt sounding & I think Valor, Wulfric, Fenris come off to me as ultra Scandinavian which might not work very well with our very Russian/Ukrainian sounding last name.

A few names we like but have nixed include Orson, Ajax, Atticus, Rohan, Zavier (they all either end in n & don't work with our last name or we have close friends or family with similar names).

We have also agreed on the following restrictions when name-choosing: No uber-popular names, nothing that is too crazy to spell or pronounce, and nothing too iconic (ie Zelda or Annekin or something).